A Fe2(CO)9-mediated [5+1] cycloaddition of vinylcyclopropanes (VCPs) and CO to α, β-cyclohexenones has been developed. The reaction can tolerate aryl and aliphatic groups at the α-position of VCPs, while VCP substrates with vinyl or alkynyl substitutions are not suitable ones. In addition, this reaction can also be used to synthesize bicyclic rings if an aryl group is attached to the vinyl moiety of
Copper-Catalyzed Synthesis of Substituted Primary Arylamines from Cyclohexenone Oxime Esters
作者:Yong-Jie Kuang、Yan Yu、Min Zhou、Yu-Cheng Yin、Tian Cai、Qun-Li Luo
DOI:10.1021/acs.orglett.3c03501
日期:2023.12.8
A novel protocol has been developed for the Cu-catalyzed synthesis of primary arylamines with meta-substituents using cyclohexenone oxime esters. Mechanistic insights suggest that the reaction proceeds via an intermolecular 1,5-H hydrogen atom transfer of an imine radical intermediate. This approach features high efficiency, a readily available catalyst system, and broad functional group tolerance
Chemoselective three-component coupling via a tandem Pd-catalyzed boron-Heck and Suzuki reactions
作者:Justin O’Neill、Kyung Soo Yoo、Kyung Woon Jung
DOI:10.1016/j.tetlet.2008.10.039
日期:2008.12
A new approach is herein reported to prepare biaryl derivatives via a tandem Pd-catalyzed boron-Heck and Suzuki reactions. This one-pot tandem process avoided purification or addition of extra catalyst between steps. The resulting biaryl compounds can be prepared with substrate variability in good to moderate yields. (C) 2008 Elsevier Ltd. All rights reserved.
Photooxygenation of 3-aryl-2-cyclohexenols: synthesis of a new series of antimalarial 1,2,4-trioxanes
作者:Chandan Singh、Nitin Gupta、Sunil K. Puri
DOI:10.1016/j.tetlet.2004.11.078
日期:2005.1
Using easily accessible 3-aryl-2-cyclohexenols, a photooxygenation route for the preparation of bicyclic 1.2.4-trioxanes is reported. Several of these trioxanes have shown significant antimalarial activity again against multidrug resistant Plasmodium yoelii mice by the oral route. (C) 2004 Elsevier Ltd. All rights reserved.
The Synthesis of Some Linear Polyphenyls
作者:G. Forrest Woods、David D. Centola、Howard E. Ruskie、C. David Miller